This isn’t the first time Martha has expressed her love for the designer. She wrote a blog post about his book store, BookMarc and has attended his runway shows at New York Fashion Week.

My favorite bookstore just so happens to be in the West Village — the same neighborhood I live in. BookMarc, the Marc Jacobs book store, is an intimate shop that organizes their books by category. Book themes include: fashion, photography, music, art, interior design and the newest category of books was added to the shop last week — cooking.

In addition to the insider tip, no pun intended, of a Sephora line, Martha spilled the beans on Marc’s favorites. She tweeted his number one designer is Prada, his favorite color is red and his favorite um, porn star is “Eddie.”

As for that Sephora beauty line, our sources said his makeup collection is coming later this year. This will be in addition to his popular line of fragrances.